cve.bz

CVE-2026-40481

8.2 highEPSS 0.4%

High (8.2) in monetr monetr. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/monetr/monetr 1.12.4.

monetr is a budgeting application for recurring expenses. In versions 1.12.3 and below, the public Stripe webhook endpoint buffers the entire request body into memory before validating the Stripe signature. A remote unauthenticated attacker can send oversized POST payloads to cause uncontrolled memory growth, leading to denial of service. The issue affects deployments with Stripe webhooks enabled and is mitigated if an upstream proxy enforces a request body size limit. This issue has been fixed in version 1.12.4.

Severity

CVSS 4.0

8.2 high
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
CWE
CWE-400
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-v7xq-3wx6-fqc2Gogithub.com/monetr/monetr<1.12.41.12.4
GO-2026-5654Gogithub.com/monetr/monetr<1.12.41.12.4

References

Check your stackJSON